Airlines had to lay on 10 additional planes just for the excess luggage and most of that, according to a senior airport official, was food.

BBC: Cuba bids farewell to tax-free food imports

Although passengers will still have to go to the bag drop area at Heathrow if they are carrying any excess luggage, the service will help business travelers know they have a seat guaranteed before they even get to the airport and also be aware of any last-minute delays.

WSJ: Cutting Down On the To and Fro